<template>
  <div class="icons">
    <swiper :options="swiperOption" v-if="showIcon">
      <swiper-slide v-for="(page, index) of pages" :key="index">
        <div class="icon" v-for="item of page" :key="item.id">
          <div class="icon-img">
            <img class="icon-imgcontent" :src="item.imgUrl"/>
          </div>
          <p class="icon-desc">{{item.desc}}</p>
        </div>
      </swiper-slide>
      <div class="swiper-pagination"  slot="pagination"></div>
    </swiper>
  </div>
</template>
<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        pagination: '.swiper-pagination',
        loop: true
      }
    }
  },
  computed: {
    // 计算分页
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    },
    showIcon () {
      return this.list.length
    }
  }
}
</script>
<style lang="stylus" scoped>
  @import "~styles/varibles.styl"
  @import "~styles/mixins.styl"
  .icons >>>.swiper-pagination-bullet
    background: rgba(144,144,144,0.8) !important
    opacity: 1
    width: .12rem
    height: .12rem
  .icons >>>.swiper-pagination-bullet-active
    background: rgba(0,175,190,.8) !important
  .icons >>>.swiper-container
    height: 0
    padding-bottom: 50%
  .icons
    margin-top: .1rem
    margin-bottom: .2rem
    .icon
      position: relative
      overflow: hidden
      float: left
      width: 25%
      height:0
      padding-bottom: 25%
      .icon-img
        position: absolute
        top:0
        left:0
        right:0
        bottom:0.44rem
        box-sizing: border-box
        padding: .1rem
        .icon-imgcontent
          display: block
          margin: 0 auto;
          height:100%
      .icon-desc
        position absolute
        bottom: 0
        left: 0
        right: 0
        height: 0.44rem
        line-height 0.44rem
        text-align: center
        color: $darkTextColor
        ellipse()
</style>
